The Resistance baselayer comes with an integrated anti-bacterial treatment for odour control during intense workouts, along with specially-designed seams to prevent rubbing for ultimate trail comfort.Long sleeve baselayerPolyester fabric - lightweight and quick-dryingAnti-bacterial treated fabric - for odour controlStretchy mesh side panels - for extra breathability and freedom of movementMain: 100% PolyesterMesh Panels: 88% Polyester/12% Elastane